At noon UK time (that's 7am US Eastern time) there is a live event about digital literacy today, Friday 2nd March. More info at http://www.guardian.co.uk/higher-education-network/blog/2012/feb/28/developing-digital-literacy?CMP=twt_gu
I was searching for a link for where to go for the chat: however I think what happens is that you chat via comments on that page (at least, that seems to be what happened the previous time). The panel includes Sue Thomas and Alison MacKenzie. Thanks to Ruth Jenkins for alerting me to this.